Overview
ISO/IEC 14496-1:2010/Amd 1:2010 is an amendment to the international standard on the "Coding of audio-visual objects"-specifically, Part 1: Systems. Developed by ISO and IEC, this document focuses on the usage of LASeR (Lightweight Application Scene Representation) in MPEG-4 systems, as well as the establishment of a Registration Authority for MPEG-4 descriptors. These enhancements are critical for improving the management, extension, and interoperability of MPEG-4 multimedia systems.
This amendment outlines changes to code-point allocations for identifiers within MPEG-4 systems and details the processes for registering and managing unique identifiers crucial for private data format identification across multimedia applications.
Key Topics
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LASeR Support in MPEG-4 Systems:
The amendment specifically enables the use of LASeR streams, referencing ISO/IEC 14496-20. This supports more advanced and efficient scene representation in MPEG-4 content.
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Registration Authority for MPEG-4 Identifiers:
A Registration Authority has been established to assign, manage, and publish unique registered identifiers (RIDs) for descriptors within the MPEG-4 framework. This includes:
- Descriptor tags (Object Descriptor Framework)
- Command tags
- ObjectTypeIndication values
- StreamType values
- SLConfigDescriptor predefined values
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Registration Procedures:
The amendment outlines efficient application and review procedures for the assignment of private data identifiers, ensuring transparency and providing an appeal mechanism for rejected applications.
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Code-point Allocation:
Adjustments are made to several tables in the underlying standard to distinguish between code-points reserved for ISO, Registration Authority, and specific stream types such as LASeR and SAF streams.
Applications
ISO/IEC 14496-1:2010/Amd 1:2010 is highly valuable in the following contexts:
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Multimedia Content Creation and Distribution:
Enables developers and broadcasters to implement efficient scene representation (using LASeR) in interactive audio-visual environments and streaming platforms.
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Custom Multimedia Extensions:
Registers and manages unique identifier values for proprietary data, supporting vendor-specific innovations while maintaining MPEG-4 interoperability.
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Registration of Multimedia Descriptors:
Organizations developing new features or proprietary extensions for MPEG-4 can apply for official registered identifiers, fostering a transparent ecosystem for codec and descriptor expansion.
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International MPEG-4 Deployments:
Facilitates regulatory compliance, system scalability, and consistent multimedia development practices worldwide.
Related Standards
Professionals working with this amendment should also be familiar with the following standards:
- ISO/IEC 14496-1: Information technology - Coding of audio-visual objects - Part 1: Systems (Main framework).
- ISO/IEC 14496-20: Information technology - Coding of audio-visual objects - Lightweight Application Scene Representation (LASeR).
- ISO/IEC JTC 1 Directives: Procedures for the registration and management of identifiers and code-points in international standards.
- ISO/IEC 14496 family of standards: Various parts addressing video, audio, and system-level coding for multimedia.
Practical Value
This amendment provides clear, standardized procedures for the integration of advanced scene coding (LASeR) into MPEG-4 systems and establishes a robust foundation for registering and managing unique identifiers. Organizations and developers benefit from improved interoperability, regulated private data integration, and enhanced capability to extend multimedia formats securely and openly.
For detailed procedures and registration forms, the Registration Authority for MPEG-4 identifiers can be accessed at http://www.mp4ra.org.
Keywords: ISO/IEC 14496-1, MPEG-4 systems, LASeR, Registration Authority, multimedia descriptors, scene representation, private data identifiers, international standard, coding of audio-visual objects.
Open preview (PDF)Information technology — Coding of audio-visual objects — Part 1: Systems — Amendment 1: Usage of LASeR in MPEG-4 systems and Registration Authority for MPEG-4 descriptors